Thread: Dura Ace 7700 group - odd ends?
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Old 05-21-15 | 09:00 PM
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FBinNY
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From: New Rochelle, NY

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

I'm not familiar enough with Dura Ace offerings and details to help with the ring, but I suspect that the stepped ferrule might be for a chainstay fitting of this type.
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